CaratHunter
Plans
Heart|Natural|GIA

1.23ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 6237766192

Certificate GIA 6237766192

Diamond specifications and retailer prices

From $5,381 NZD
As of November 6, 2026
Save $5,780 NZD (52%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $11,162 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6237766192. Listed at 11 retailers as of November 4, 2026, with prices from $5,381 to $11,162, a $5,780 spread on the same certified stone. MOH London lists it at $11,162. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.23
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6237766192
Dimensions7.32 × 5.50 × 3.71 mm
L/W Ratio1.33
Culet sizeNone
Top View
7.32 mm5.50 mm1.23 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6237766192
Side View
Table 70.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $11,162 NZD|Low: $5,381 NZD|High: $11,310 NZD|Avg: $7,199 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10$5,381 NZD
Retailer 7$5,484 NZD
Retailer 11$5,524 NZD
Retailer 8$5,745 NZD
Retailer 12$6,085 NZD
Retailer 2$6,579 NZD
Retailer 6$6,929 NZD
Retailer 3$7,576 NZD
Retailer 5$7,789 NZD
Retailer 4$8,334 NZD
Retailer 9$9,763 NZD
MOH London$11,162 NZD

24 data points across 12 retailers

11 retailers$5,381 NZD to $11,162 NZD

B+
Cheapest Retailer
-
$5,381 NZD
B+
Retailer 2
-
$5,484 NZD
View
B+
Retailer 3
-
$5,524 NZD
View
B+
Retailer 4
-
$5,745 NZD
View
B
Retailer 5
-
$6,085 NZD
View
B
Retailer 6
-
$6,579 NZD
View
B
Retailer 7
-
$6,929 NZD
View
Retailer 8
-
$7,576 NZD
View
Price last confirmed 15 days ago
B
Retailer 9
-
$7,789 NZD
View
B
Retailer 10
-
$9,763 NZD
View
Most Expensive
B
MOH London
424A08179 · Nov 4
$11,162 NZD
£4,872 GBP
View
10 more retailers have this diamond
Prices start from $5,381 NZDSave up to $5,780 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.23ct Heart
$5,381 NZD